This article focuses on the relationship between the creation of colonial a
gricultural and environmental knowledge and the exercise of state power in
Kenya during a 25 year period that saw growing state dependence on African
agriculture and evidence of the environmental costs of policies to expand s
uch production. First, in the context of the political crisis in Kenya, whi
ch centred on the alienation of land to white settler farmers, it argues th
at the language of 'betterment' and 'environmentalism' became parr of a bur
eaucratic apparatus. This, to follow James Ferguson,(1) both extended state
control more deeply into the Kikuyu Reserves and attempted to depoliticise
the issue of land and its distribution. Second, in order to expose the pol
itical interests embedded in this construction of stare knowledge, the arti
cle presents evidence to demonstrate that such knowledge was contested by s
ome scientists within the colonial service. Third, it extends arguments abo
ut the reconfiguration of power between coloniser and colonised through the
extension of state science by analysing the gendered dimensions of colonia
l agricultural discourses.